private void DrawViewport()
{
var size = ImGui.GetWindowSize();
if (Pipeline.Width != (int)size.X || Pipeline.Height != (int)size.Y)
{
Pipeline.Width = (int)size.X;
Pipeline.Height = (int)size.Y;
Pipeline.OnResize();
}
Pipeline.RenderScene();
if ((ImGui.IsWindowFocused() && _mouseDown) ||
ImGui.IsWindowFocused() && ImGui.IsWindowHovered() || _mouseDown)
{
if (!onEnter)
{
Pipeline.ResetPrevious();
onEnter = true;
}
//Only update scene when necessary
if (ImGuiController.ApplicationHasFocus)
{
UpdateCamera();
}
}
else
{
onEnter = false;
//Reset drag/dropped model data if mouse leaves the viewport during a drag event
if (DragDroppedModel != null)
{
DragDroppedModel.DragDroppedOnLeave();
DragDroppedModel = null;
}
}
var id = Pipeline.GetViewportTexture();
ImGui.Image((IntPtr)id, size, new System.Numerics.Vector2(0, 1), new System.Numerics.Vector2(1, 0));
if (ImGui.BeginDragDropTarget())
{
ImGuiPayloadPtr outlinerDrop = ImGui.AcceptDragDropPayload("OUTLINER_ITEM",
ImGuiDragDropFlags.AcceptNoDrawDefaultRect | ImGuiDragDropFlags.AcceptBeforeDelivery);
if (outlinerDrop.IsValid())
{
//Drag/drop things onto meshes
var mouseInfo = CreateMouseState();
var picked = Pipeline.GetPickedObject(mouseInfo);
//Picking object changed.
if (DragDroppedModel != picked)
{
//Set exit drop event for previous model
if (DragDroppedModel != null)
{
DragDroppedModel.DragDroppedOnLeave();
}
DragDroppedModel = picked;
//Model has changed so call the enter event
if (picked != null)
{
picked.DragDroppedOnEnter();
}
}
if (picked != null)
{
//Set the drag/drop event
var node = Outliner.GetDragDropNode();
picked.DragDropped(node.Tag);
}
if (mouseInfo.LeftButton == ButtonState.Released)
{
DragDroppedModel = null;
}
}
ImGui.EndDragDropTarget();
}
}
public void Render()
{
//Menu
if (ImGui.BeginMenuBar())
{
if (ImGui.BeginMenu("View Setting"))
{
if (ImGui.BeginMenu("Background"))
{
ImGui.Checkbox("Display", ref DrawableBackground.Display);
ImGui.ColorEdit3("Color Top", ref DrawableBackground.BackgroundTop);
ImGui.ColorEdit3("Color Bottom", ref DrawableBackground.BackgroundBottom);
ImGui.EndMenu();
}
if (ImGui.BeginMenu("Grid"))
{
ImGui.Checkbox("Display", ref DrawableFloor.Display);
ImGui.ColorEdit4("Grid Color", ref DrawableFloor.GridColor);
ImGui.InputInt("Grid Cell Count", ref Toolbox.Core.Runtime.GridSettings.CellAmount);
ImGui.InputFloat("Grid Cell Size", ref Toolbox.Core.Runtime.GridSettings.CellSize);
ImGui.EndMenu();
}
// ImGui.Checkbox("VSync", ref Toolbox.Core.Runtime.EnableVSync);
ImGui.Checkbox("Wireframe", ref Toolbox.Core.Runtime.RenderSettings.Wireframe);
ImGui.Checkbox("WireframeOverlay", ref Toolbox.Core.Runtime.RenderSettings.WireframeOverlay);
ImGui.EndMenu();
}
if (ImGui.BeginMenu($"Shading [{Runtime.DebugRendering}]"))
{
foreach (var mode in Enum.GetValues(typeof(Runtime.DebugRender)))
{
bool isSelected = (Runtime.DebugRender)mode == Runtime.DebugRendering;
if (ImGui.Selectable(mode.ToString(), isSelected))
{
Runtime.DebugRendering = (Runtime.DebugRender)mode;
}
if (isSelected)
{
ImGui.SetItemDefaultFocus();
}
}
ImGui.EndMenu();
}
if (ImGui.BeginMenu("Camera"))
{
if (ImGui.Button("Reset Transform"))
{
Pipeline._context.Camera.TargetPosition = new OpenTK.Vector3(0, 1, -5);
Pipeline._context.Camera.RotationX = 0;
Pipeline._context.Camera.RotationY = 0;
Pipeline._context.Camera.UpdateMatrices();
}
ImGuiHelper.InputFromBoolean("Orthographic", Pipeline._context.Camera, "IsOrthographic");
ImGuiHelper.InputFromFloat("Fov (Degrees)", Pipeline._context.Camera, "FovDegrees", true, 1f);
if (Pipeline._context.Camera.FovDegrees != 45)
{
ImGui.SameLine(); if (ImGui.Button("Reset"))
{
Pipeline._context.Camera.FovDegrees = 45;
}
}
ImGuiHelper.InputFromFloat("ZFar", Pipeline._context.Camera, "ZFar", true, 1f);
if (Pipeline._context.Camera.ZFar != 100000.0f)
{
ImGui.SameLine(); if (ImGui.Button("Reset"))
{
Pipeline._context.Camera.ZFar = 100000.0f;
}
}
ImGuiHelper.InputFromFloat("ZNear", Pipeline._context.Camera, "ZNear", true, 0.1f);
if (Pipeline._context.Camera.ZNear != 0.1f)
{
ImGui.SameLine(); if (ImGui.Button("Reset"))
{
Pipeline._context.Camera.ZNear = 0.1f;
}
}
ImGuiHelper.InputFromFloat("Zoom Speed", Pipeline._context.Camera, "ZoomSpeed", true, 0.1f);
if (Pipeline._context.Camera.ZoomSpeed != 1.0f)
{
ImGui.SameLine(); if (ImGui.Button("Reset"))
{
Pipeline._context.Camera.ZoomSpeed = 1.0f;
}
}
ImGuiHelper.InputFromFloat("Pan Speed", Pipeline._context.Camera, "PanSpeed", true, 0.1f);
if (Pipeline._context.Camera.PanSpeed != 1.0f)
{
ImGui.SameLine(); if (ImGui.Button("Reset"))
{
Pipeline._context.Camera.PanSpeed = 1.0f;
}
}
ImGui.EndMenu();
}
if (ImGui.BeginMenu("Reset Animations"))
{
parentWindow.Reset();
ImGui.EndMenu();
}
ImGui.EndMenuBar();
var menuBG = ImGui.GetStyle().Colors[(int)ImGuiCol.MenuBarBg];
ImGui.PushStyleColor(ImGuiCol.WindowBg, menuBG);
ImGui.PushStyleColor(ImGuiCol.ChildBg, menuBG);
if (ImGui.BeginChild("viewport_menu2", new System.Numerics.Vector2(350, 22)))
{
ImGui.AlignTextToFramePadding();
ImGui.Text("Active Model(s)");
ImGui.SameLine();
if (ImGui.BeginCombo("##model_select", selectedModel))
{
bool isSelected = "All Models" == selectedModel;
if (ImGui.Selectable("All Models", isSelected))
{
selectedModel = "All Models";
}
if (isSelected)
{
ImGui.SetItemDefaultFocus();
}
foreach (var file in Pipeline.Files)
{
string name = file.Renderer.Name;
isSelected = name == selectedModel;
if (ImGui.Selectable(name, isSelected))
{
selectedModel = name;
}
if (isSelected)
{
ImGui.SetItemDefaultFocus();
}
}
ImGui.EndCombo();
}
}
ImGui.EndChild();
ImGui.PopStyleColor(2);
}
//Make sure the entire viewport is within a child window to have accurate mouse and window sizing relative to the space it uses.
if (ImGui.BeginChild("viewport_child1"))
{
var size = ImGui.GetWindowSize();
if (Pipeline.Width != (int)size.X || Pipeline.Height != (int)size.Y)
{
Pipeline.Width = (int)size.X;
Pipeline.Height = (int)size.Y;
Pipeline.OnResize();
}
Pipeline.RenderScene();
if (ImGui.IsWindowFocused() && ImGui.IsWindowHovered() || ForceUpdate || _mouseDown)
{
ForceUpdate = false;
if (!onEnter)
{
Pipeline.ResetPrevious();
onEnter = true;
}
//Only update scene when necessary
UpdateCamera();
}
else
{
onEnter = false;
//Reset drag/dropped model data if mouse leaves the viewport during a drag event
if (DragDroppedModel != null)
{
DragDroppedModel.DragDroppedOnLeave();
DragDroppedModel = null;
}
}
var id = Pipeline.GetViewportTexture();
ImGui.Image((IntPtr)id, size, new System.Numerics.Vector2(0, 1), new System.Numerics.Vector2(1, 0));
if (ImGui.BeginDragDropTarget())
{
ImGuiPayloadPtr outlinerDrop = ImGui.AcceptDragDropPayload("OUTLINER_ITEM",
ImGuiDragDropFlags.AcceptNoDrawDefaultRect | ImGuiDragDropFlags.AcceptBeforeDelivery);
if (outlinerDrop.IsValid())
{
//Drag/drop things onto meshes
var mouseInfo = CreateMouseState();
var picked = Pipeline.GetPickedObject(mouseInfo);
//Picking object changed.
if (DragDroppedModel != picked)
{
//Set exit drop event for previous model
if (DragDroppedModel != null)
{
DragDroppedModel.DragDroppedOnLeave();
}
DragDroppedModel = picked;
//Model has changed so call the enter event
if (picked != null)
{
picked.DragDroppedOnEnter();
}
}
if (picked != null)
{
//Set the drag/drop event
var node = Outliner.GetDragDropNode();
picked.DragDropped(node.Tag);
}
}
ImGui.EndDragDropTarget();
}
}
ImGui.EndChild();
}